Mine comes from a short story called "Worms of the Earth" by Robert E. Howard.

I, Atla, the were-woman of the moors! What have I known but the lone winds of the fens, the dreary fire of cold sunsets, the whispering of the marsh grasses? – the faces that blink up at me in the waters of the meres, the foot-pad of night – things in the gloom, the glimmer of red eyes, the grisly murmur of nameless beings in the night!
“I am half-human, at least! Have I not known sorrow and yearning and crying wistfulness, and the drear ache of loneliness?

I read the story years ago.

My first impression of her was that she was a survivor in a world where she was loathed, so a part of me identified with her and I have used it ever since.